Service Scans; Service Level Summary - Viessmann Vitodens 300 Service Instructions Manual

Service level summary

Function
Temperatures, boiler cod-
ing card and brief scans
Relay test
Max. output (heating
mode)
Operating condition
Maintenance scan
Adjusting the display con-
trast
Fault history
User check (in conjunc-
tion with LON system)
Emissions test function
S
Coding level 1
Plain text display
Coding level 2
Numerical display
Max. output in heating
mode
Key combination
Press K and G simulta-
neously for approx.
2 seconds
Press K and d simulta-
neously for approx.
2 seconds
Press K and F simulta-
neously for approx.
2 seconds
Press c
c (if "Maintenance"
flashes)
Press d and b simulta-
neously; display darkens
Press d and a simulta-
neously; display becomes
lighter
Press G and d simulta-
neously for approx.
2 seconds
Press L and d simulta-
neously for approx.
2 seconds
Press F and E simulta-
neously for approx.
2 seconds
Press K and L simulta-
neously for approx.
2 seconds
Press L and G simulta-
neously for approx.
2 seconds
Press K and F simulta-
neously for approx.
2 seconds

Service scans

Exit Page
Press d
64
Press d
68
Press d
16
Press c
70
Press d –
– –
– –
– –
– –
Press F –
and E
simulta-
neously
Press K
38
and L
simulta-
neously
Press L
42
and G
simulta-
neously
Press K
16
and F
simulta-
neously
63